The next time is learning time.

In order to save time, Gu Dong temporarily gave up Chinese and English, focusing on mathematics, physics and chemistry.

After reading the textbook, he searched for some information about lithium batteries on his mobile phone.

Gu Dong’s purpose is to make the energy batteries in the science and technology city.

That thing is too important and must not be let go.

Originally, it was OK to go directly from the Science and Technology City, but it might be discovered by others, so you can only do it yourself, study it yourself, or produce it yourself.

It would be great if he could produce that kind of battery himself.

There are many knowledge points in lithium battery design, and it is impossible to make it with his current knowledge reserves, but Gu Dong is not in a hurry, he has enough time.

While checking the information about the principles of lithium batteries, while continuing to supplement physics and chemistry knowledge, it has to be said that high school gave him a great advantage, because in a sense, high school is the peak period of knowledge reserves in a person's life.

For the college entrance examination, some teenage students know astronomy and geography. If ordinary people pass the college entrance examination, they basically forget and lose.

Lithium batteries are currently the mainstream battery on earth. It is not difficult to make lithium batteries. After reading a bunch of lithium battery production tutorials on the Internet, Gu Dong learned it.

Lithium-ion batteries generally use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and non-aqueous electrolytes.

Of course, he doesn’t want to just learn how to make lithium batteries. He still needs to know how the energy batteries in the Science and Technology City are produced? What is the principle?

Perhaps the batteries in the Science and Technology City are not at all related to the batteries on the earth.

There seems to be a kind of graphene battery on earth, but this battery has a large bottle roof, which is not practical.

Gu Dong doesn't care about anything else for the time being. Since there are lithium batteries, then learn lithium batteries first. It doesn't hurt to master more knowledge.

After a whole day, Gu Dong finished reading the physics textbooks and chemistry textbooks for the first year of high school. After passing it in his mind, he found that he had indeed remembered it, and wanted to look for some textbooks for the second and third year of high school.

It is not difficult to find textbooks for the second and third grades of high school. His family does not have textbooks for the second and third grades of high school. If you want it, you can only borrow them from others.

As far as he knows, Tang Xiu and Yang Shenpan have textbooks for the second and third grades of high school.

That was lent to her by the teacher.

In the class, some students with good grades occasionally find ways to get a set of textbooks for the second and third grades of high school.

They will read the contents in advance.

Tang Xiu and Yang Shenpan both have good grades and are both among the top students in the class, so when Tang Xiu first started high school, he had already made a complete set of high school textbooks.

Gu Dong didn't know whether he was studying or not, but if she was free, she would definitely look at the contents behind in advance.

So as soon as school was over, Gu Dong found Tang Xiu.

"What? Do you want to borrow the physical and chemistry textbooks for the second and third grades of high school?" Tang Xiu said in surprise after school.

Gu Dong nodded and said, "I want to take a look. Xiuxiu, are your textbook still at home?"

"It's still here, on my bookshelf!" Tang Xiu was amused when he heard this. He suddenly stood on tiptoe and touched his head and squinted his eyes, "Brother Dongzi, why did you suddenly remember to read these textbooks? These textbooks are so difficult!"

Gu Dong smiled and explained: "I am interested in lithium batteries, so I want to study it. Now I just want to see what textbooks can help!"

"Are you interested in lithium batteries?" Tang Xiu smiled again and looked at him with his big crystal clear eyes: "Brother Dongzi, you are not excited, are you?"

"No! But I suddenly had some whimsical inspiration and wanted to invent a battery!" Gu Dong said: "But I don't know if it can be done yet!"

"Ah?" Tang Xiu immediately looked at Yang Shenpan with a strange look when he heard this.

Yang Shenpan smiled and said, "Gu Dong, do you still want to invent a battery?"

But Gu Dong smiled and said, "Try it, just give it a try. I am too serious in subject matter, so I may have no expectations for studying!"

"Brother Dongzi, I support you. But lithium battery production is still very simple. I heard that all the chemistry teachers in the second year of high school teach you!" Tang Xiu laughed.

Although she was strange why Gu Dong suddenly wanted to do this, it was not a big deal. Boys all had some strange hobbies, such as dismantling electrical appliances, playing games. When she was a child, she often drifted in the refrigerator to see how the refrigerator lights were turned off!

"It's very simple, so I want to learn it!" Gu Dong didn't say much, after all, he didn't know if he could make his own battery.

Tang Xiu and Yang Shenpan both smiled when they heard this and didn't take it seriously. This matter was just a trivial matter for them and they didn't need to care at all.

The three of them went to find a snack bar to fill their stomachs, and then Yang Shenpan said goodbye to them and squeezed the bus home by himself. Gu Dong and Tang Xiu also walked back.

On the way, Tang Xiu was still chattering about some things. She seemed to be in a very good mood. Because she was doing well in the exam, the teacher praised her again during class today, which made her very happy.

Gu Dong also found it interesting as he listened.

This girl is getting more and more cute!

Well, it's not just cute, it's also pretty!

When she returned to the community, she went to Tang Xiu's house to get textbooks first. There was no one at her family. Her parents went out to work. After getting the textbooks for the second and third grades of high school, Gu Dong did not hesitate and immediately returned to his own home.

However, when he pushed the door open, he found a middle-aged man sitting in the living room of his house. Who else wasn't his father Gu Dechang?

Seeing him come back, my dad immediately glanced at him and looked unhappy.

"Dad!" Gu Dong shouted hurriedly.

My dad was not in a good mood, and seemed too lazy to say anything, and said directly: "The things in the bag are all yours, take them back!"

Gu Dong looked at it and saw a few bags on the table. I don’t have to think about it. It must be the gift he bought for him after he came back from a business trip.

Although his father would occasionally get angry and beat him up, if he was on a business trip, he would buy him some gifts every time he came back.

Gu Dong nodded and found that his father's face was full of fatigue. He couldn't help but be stunned and asked, "Dad, I heard that you have gone to Andong City this time?"

"Yeah!" Dad nodded, stared at him and said, "Do you don't want to study anymore?"

Gu Dong was stunned and hurriedly said, "No! How could I have it!"

"I heard from your mother about you. If you don't want to study, then don't study from the next semester!" Gu Dechang said with some regret: "Anyway, I guess you're a waste of time when you study. Why not learn some skills from your Uncle Hao!"

Upon hearing this, Gu Dong hurriedly said, "No, I still want to read it."

"Ha, you didn't have the performance of reading carefully!" Gu Dechang seemed very tired, sighed and said, "Go, wash the fruit and take it out to eat!"

He didn't seem to want to say much, and he was too lazy to scold Gu Dong.
Chapter completed!